php gzencode函数需要扩展吗

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热心网友 时间：2023-10-26 12:12

gzencode

(PHP 4 >= 4.0.4, PHP 5)

gzencode — Create a gzip compressed string

说明
string gzencode ( string $data [, int $level = -1 [, int $encoding_mode = FORCE_GZIP ]] )
This function returns a compressed version of the input data compatible with the output of the gzip program.

For more information on the GZIP file format, see the document: » GZIP file format specification version 4.3 (RFC 1952).

参数
data
The data to encode.

level
The level of compression. Can be given as 0 for no compression up to 9 for maximum compression. If not given, the default compression level will be the default compression level of the zlib library.

encoding_mode
The encoding mode. Can be FORCE_GZIP (the default) or FORCE_DEFLATE.

Prior to PHP 5.4.0, using FORCE_DEFLATE results in a standard zlib deflated string (inclusive zlib headers) after a gzip file header but without the trailing crc32 checksum.

In PHP 5.4.0 and later, FORCE_DEFLATE generates RFC 1950 compliant output, consisting of a zlib header, the deflated data, and an Adler checksum.

返回值
The encoded string, or FALSE if an error occurred.

更新日志
版本说明
5.4.0FORCE_DEFLATE now generates RFC 1950 compliant output.
4.2.0The encoding_mode parameter was added
范例
The resulting data contains the appropriate headers and data structure to make a standard .gz file, e.g.:

Example #1 Creating a gzip file

<?php
$data = implode("", file("bigfile.txt"));
$gzdata = gzencode($data, 9);
$fp = fopen("bigfile.txt.gz", "w");
fwrite($fp, $gzdata);
fclose($fp);
?>
参见
gzdecode() - Decodes a gzip compressed string
gzdeflate() - Deflate a string
gzinflate() - Inflate a deflated string
gzuncompress() - Uncompress a compressed string
gzcompress() - Compress a string
» ZLIB Compressed Data Format Specification (RFC 1950)

gzeof> <gzdeflate
[edit] Last updated: Sat, 17 Nov 2012

热心网友 时间：2023-10-26 12:12

在java中用Inflater.setInput()输入PHP传来的码文,用Inflater.inflate()解压出原文. 再用new String(原文, "GBK");转换成java字符串。

热心网友 时间：2023-10-26 12:12

gzencode

(PHP 4 >= 4.0.4, PHP 5)

gzencode — Create a gzip compressed string

说明
string gzencode ( string $data [, int $level = -1 [, int $encoding_mode = FORCE_GZIP ]] )
This function returns a compressed version of the input data compatible with the output of the gzip program.

For more information on the GZIP file format, see the document: » GZIP file format specification version 4.3 (RFC 1952).

参数
data
The data to encode.

level
The level of compression. Can be given as 0 for no compression up to 9 for maximum compression. If not given, the default compression level will be the default compression level of the zlib library.

encoding_mode
The encoding mode. Can be FORCE_GZIP (the default) or FORCE_DEFLATE.

Prior to PHP 5.4.0, using FORCE_DEFLATE results in a standard zlib deflated string (inclusive zlib headers) after a gzip file header but without the trailing crc32 checksum.

In PHP 5.4.0 and later, FORCE_DEFLATE generates RFC 1950 compliant output, consisting of a zlib header, the deflated data, and an Adler checksum.

返回值
The encoded string, or FALSE if an error occurred.

更新日志
版本说明
5.4.0FORCE_DEFLATE now generates RFC 1950 compliant output.
4.2.0The encoding_mode parameter was added
范例
The resulting data contains the appropriate headers and data structure to make a standard .gz file, e.g.:

Example #1 Creating a gzip file

<?php
$data = implode("", file("bigfile.txt"));
$gzdata = gzencode($data, 9);
$fp = fopen("bigfile.txt.gz", "w");
fwrite($fp, $gzdata);
fclose($fp);
?>
参见
gzdecode() - Decodes a gzip compressed string
gzdeflate() - Deflate a string
gzinflate() - Inflate a deflated string
gzuncompress() - Uncompress a compressed string
gzcompress() - Compress a string
» ZLIB Compressed Data Format Specification (RFC 1950)

gzeof> <gzdeflate
[edit] Last updated: Sat, 17 Nov 2012

热心网友 时间：2023-10-26 12:12

在java中用Inflater.setInput()输入PHP传来的码文,用Inflater.inflate()解压出原文. 再用new String(原文, "GBK");转换成java字符串。

热心网友 时间：2023-10-26 12:12

gzencode

(PHP 4 >= 4.0.4, PHP 5)

gzencode — Create a gzip compressed string

说明
string gzencode ( string $data [, int $level = -1 [, int $encoding_mode = FORCE_GZIP ]] )
This function returns a compressed version of the input data compatible with the output of the gzip program.

For more information on the GZIP file format, see the document: » GZIP file format specification version 4.3 (RFC 1952).

参数
data
The data to encode.

level
The level of compression. Can be given as 0 for no compression up to 9 for maximum compression. If not given, the default compression level will be the default compression level of the zlib library.

encoding_mode
The encoding mode. Can be FORCE_GZIP (the default) or FORCE_DEFLATE.

Prior to PHP 5.4.0, using FORCE_DEFLATE results in a standard zlib deflated string (inclusive zlib headers) after a gzip file header but without the trailing crc32 checksum.

In PHP 5.4.0 and later, FORCE_DEFLATE generates RFC 1950 compliant output, consisting of a zlib header, the deflated data, and an Adler checksum.

返回值
The encoded string, or FALSE if an error occurred.

更新日志
版本说明
5.4.0FORCE_DEFLATE now generates RFC 1950 compliant output.
4.2.0The encoding_mode parameter was added
范例
The resulting data contains the appropriate headers and data structure to make a standard .gz file, e.g.:

Example #1 Creating a gzip file

<?php
$data = implode("", file("bigfile.txt"));
$gzdata = gzencode($data, 9);
$fp = fopen("bigfile.txt.gz", "w");
fwrite($fp, $gzdata);
fclose($fp);
?>
参见
gzdecode() - Decodes a gzip compressed string
gzdeflate() - Deflate a string
gzinflate() - Inflate a deflated string
gzuncompress() - Uncompress a compressed string
gzcompress() - Compress a string
» ZLIB Compressed Data Format Specification (RFC 1950)

gzeof> <gzdeflate
[edit] Last updated: Sat, 17 Nov 2012

热心网友 时间：2023-10-26 12:12

在java中用Inflater.setInput()输入PHP传来的码文,用Inflater.inflate()解压出原文. 再用new String(原文, "GBK");转换成java字符串。

热心网友 时间：2023-10-26 12:13

he data to encode.
level
The level of compression. Can be given as 0 for no compression up to 9 for maximum compression. If not given, the default compression level will be the default compression level of the zlib library.
encoding_mode
The encoding mode. Can be FORCE_GZIP (the default) or FORCE_DEFLATE.
Prior to PHP 5.4.0, using FORCE_DEFLATE results in a standard zlib deflated string (inclusive zlib headers) after a gzip file header but without the trailing crc32 checksum.
In PHP 5.4.0 and later, FORCE_DEFLATE generates RFC 1950 compliant output, consisting of a zlib header, the deflated data, and an Adler checksum.

热心网友 时间：2023-10-26 12:13

he data to encode.
level
The level of compression. Can be given as 0 for no compression up to 9 for maximum compression. If not given, the default compression level will be the default compression level of the zlib library.
encoding_mode
The encoding mode. Can be FORCE_GZIP (the default) or FORCE_DEFLATE.
Prior to PHP 5.4.0, using FORCE_DEFLATE results in a standard zlib deflated string (inclusive zlib headers) after a gzip file header but without the trailing crc32 checksum.
In PHP 5.4.0 and later, FORCE_DEFLATE generates RFC 1950 compliant output, consisting of a zlib header, the deflated data, and an Adler checksum.

热心网友 时间：2023-10-26 12:13

he data to encode.
level
The level of compression. Can be given as 0 for no compression up to 9 for maximum compression. If not given, the default compression level will be the default compression level of the zlib library.
encoding_mode
The encoding mode. Can be FORCE_GZIP (the default) or FORCE_DEFLATE.
Prior to PHP 5.4.0, using FORCE_DEFLATE results in a standard zlib deflated string (inclusive zlib headers) after a gzip file header but without the trailing crc32 checksum.
In PHP 5.4.0 and later, FORCE_DEFLATE generates RFC 1950 compliant output, consisting of a zlib header, the deflated data, and an Adler checksum.

热心网友 时间：2023-10-26 12:12

gzencode

(PHP 4 >= 4.0.4, PHP 5)

gzencode — Create a gzip compressed string

说明
string gzencode ( string $data [, int $level = -1 [, int $encoding_mode = FORCE_GZIP ]] )
This function returns a compressed version of the input data compatible with the output of the gzip program.

For more information on the GZIP file format, see the document: » GZIP file format specification version 4.3 (RFC 1952).

参数
data
The data to encode.

level
The level of compression. Can be given as 0 for no compression up to 9 for maximum compression. If not given, the default compression level will be the default compression level of the zlib library.

encoding_mode
The encoding mode. Can be FORCE_GZIP (the default) or FORCE_DEFLATE.

Prior to PHP 5.4.0, using FORCE_DEFLATE results in a standard zlib deflated string (inclusive zlib headers) after a gzip file header but without the trailing crc32 checksum.

In PHP 5.4.0 and later, FORCE_DEFLATE generates RFC 1950 compliant output, consisting of a zlib header, the deflated data, and an Adler checksum.

返回值
The encoded string, or FALSE if an error occurred.

更新日志
版本说明
5.4.0FORCE_DEFLATE now generates RFC 1950 compliant output.
4.2.0The encoding_mode parameter was added
范例
The resulting data contains the appropriate headers and data structure to make a standard .gz file, e.g.:

Example #1 Creating a gzip file

<?php
$data = implode("", file("bigfile.txt"));
$gzdata = gzencode($data, 9);
$fp = fopen("bigfile.txt.gz", "w");
fwrite($fp, $gzdata);
fclose($fp);
?>
参见
gzdecode() - Decodes a gzip compressed string
gzdeflate() - Deflate a string
gzinflate() - Inflate a deflated string
gzuncompress() - Uncompress a compressed string
gzcompress() - Compress a string
» ZLIB Compressed Data Format Specification (RFC 1950)

gzeof> <gzdeflate
[edit] Last updated: Sat, 17 Nov 2012

热心网友 时间：2023-10-26 12:13

在java中用Inflater.setInput()输入PHP传来的码文,用Inflater.inflate()解压出原文. 再用new String(原文, "GBK");转换成java字符串。

热心网友 时间：2023-10-26 12:13

he data to encode.
level
The level of compression. Can be given as 0 for no compression up to 9 for maximum compression. If not given, the default compression level will be the default compression level of the zlib library.
encoding_mode
The encoding mode. Can be FORCE_GZIP (the default) or FORCE_DEFLATE.
Prior to PHP 5.4.0, using FORCE_DEFLATE results in a standard zlib deflated string (inclusive zlib headers) after a gzip file header but without the trailing crc32 checksum.
In PHP 5.4.0 and later, FORCE_DEFLATE generates RFC 1950 compliant output, consisting of a zlib header, the deflated data, and an Adler checksum.